CN110593105A - A push-type swivel translation system and bridge construction method combining swivel and translation - Google Patents

Abstract

The invention relates to a push-type swivel translation system combining swivel and translation and a bridge construction method. The system includes a swivel structure, a slideway system and a pusher system for pushing the swivel structure to translate along the slideway system , the slideway system is arranged along the construction position of the swivel bridge to the translation position of the swivel bridge, the swivel structure is supported on the slideway system, and is slidably matched with the slideway system, and the upper end of the swivel structure is set Piers and bridges. The invention can construct the swivel bridge at the non-line position, and then translate the bridge to the line position after the swivel is successful, which can reduce the engineering land, improve the feasibility of the engineering project, reduce demolition, save investment, and improve the horizontal and vertical plane design of the line, etc. .

Description

A push-type swivel translation system combined with swivel and translation and bridge construction method

technical field

The invention relates to the field of bridge construction, in particular to a push-type swivel translation system and a bridge construction method which combine swivel and translation.

Background technique

An overpass bridge is defined as an overpass bridge set up by a new road or railway to cross an existing road or railway. The current conventional plane swivel construction method of the flyover bridge is to swivel on the design line of the new road (railway). After the swivel crosses the existing road (railway), the swivel bridge line coincides with the design line It is a one-time swivel technology. This technology needs to set up a swivel site with the same length as the swivel structure on one or both sides of the existing road (railway), and the required construction site is relatively large.

When the construction site of the overpass bridge is not restricted, the construction is simple, the force is clear, safe and reliable, and it is favored by the owner, especially when crossing the railway, because it is safe and reliable, and the interference to the crossed railway is minimal. When crossing the railway construction, it is highly praised by the railway authority.

However, in the following two cases, the application of the conventional flyover plane swivel construction method is limited, or the application of this technology will bring other inconveniences.

1. To widen and renovate the existing overpass bridge, affected by the existing bridge and the layout of the swivel site, if the conventional way is used for swivel, the newly built line in the widened section of the overpass needs to be wound around to allow sufficient swivel The construction space will cause the line plane to be unsmooth; at the same time, this treatment method will produce a triangular plot between the widened bridge and the existing iron bridge, and there is a disadvantage of wasting land resources.

2. For new overpass bridges in the city, the bridge position is limited by the existing urban roads and there is very little room for choice. The conventional swivel is often affected by the inability to demolish existing buildings or special structures. The swivel bridge is designed as an extremely asymmetric structure , which brings the disadvantages that the bridge structure is an unconventional structure, the force is complicated, the investment is increased, and the safety risk is increased.

Contents of the invention

The purpose of the present invention is to provide a push-type swivel translation system and bridge construction method combining swivel and translation, which can construct a swivel bridge at a non-linear position, and then translate the bridge to the linear position after the swivel is successful It can reduce the project land, improve the feasibility of the project, reduce demolition, save investment, improve the horizontal and vertical design of the line, etc.

The present invention is achieved in the following way: the present invention discloses a push-type rotary translation system combining a rotary body and a translation, including a rotary structure, a slideway system, and a top for pushing the rotary structure to translate along the slideway system. Pushing system, the slideway system is arranged along the construction position of the swivel bridge to the translation position of the swivel bridge, the swivel structure is supported on the slideway system, and is slidingly matched with the slideway system, the swivel structure Piers and bridges are set at the upper end.

Further, the slideway system includes a translation slideway arranged along the construction position of the swivel bridge to the translation position of the swivel bridge, a slideway foundation is arranged under the translation slideway; the swivel structure is supported on the translation slideway, And it is slidingly matched with the translation slideway. The translation slideway can adopt guide rail or slide plate. The translation slideway is laid on the slideway foundation. A part of the slideway foundation of the present invention utilizes the bridge cap foundation of the translational position of the swivel bridge, and the remaining part adopts the concrete cap and pile foundation.

Further, the lower end of the swivel structure is fixed with a pulley block or a slider, and the pulley block or slider is slidably matched with the translation slideway of the slideway system. The slider can adopt steel plate structure or concrete + steel plate structure.

Further, the jacking system includes a jack and a back. Back slots are reserved in sections on both sides of the slideway system for prefabricated or cast-in-place backs section by section. Push from the construction position of the swivel bridge to the translational position of the swivel bridge.

Further, the jacking system includes a jack and a back, and by setting a spacer between the back of the jack and the back or/and setting a top iron in front of the jack, the jack is segmented to move the swivel structure from the construction position of the swivel bridge Push it to the translational position of the swivel bridge. Pads can be concrete blocks.

Further, scale marks are provided on the lower bearing platform, a scale is provided on the side of the translation slideway corresponding to the translation position of the swivel bridge, and the pushing system is used to push the swivel structure to translate to the swivel bridge. Position translation, when the scale mark on the lower bearing platform reaches the scale set on the scale through the instrument, it means that the swivel structure is in place at the set swivel bridge translation position.

Further, one end of the slideway system is provided with a detachable first fixing structure, that is, a temporary fixing structure, which is used to temporarily fix the lower end of the swivel structure at the construction position of the swivel bridge with the slideway system; the first A consolidation structure is a concrete structure or a steel structure; the other end of the slideway system is provided with a second consolidation structure, which is used to translate the lower end of the swivel structure and the swivel bridge into place at the translation position of the swivel bridge The bridge cap foundation at the first position is fixed; the second consolidation structure is a post-cast concrete structure.

The invention discloses a bridge construction method combining rotation and translation, comprising the following steps:

Determine the construction position of the swivel bridge and the translation position of the swivel bridge;

Construction slideway system along the construction position of the swivel bridge to the translational position of the swivel bridge;

Prefabricate the swivel bridge at the construction position of the swivel bridge. During the construction of the swivel bridge, fix the lower end of the swivel structure of the swivel bridge to the slideway system through the detachable first consolidation structure;

After the construction of the swivel bridge is completed, turn the swivel bridge to the design position;

consolidated swivel structure;

dismantling the first consolidation structure;

Install a jacking system;

Translate the swivel bridge from the construction position of the swivel bridge to the translational position of the swivel bridge through the jacking system;

Fixing the lower end of the swivel structure and the bridge cap foundation of the swivel bridge in place through the second consolidation structure;

Carry out follow-up construction and complete bridge operation.

Further, the jacking system includes a jack and a back, by prefabricating or casting the back section by section by reserving back slots on both sides of the slideway according to the needs, or setting a cushion block behind the jack and a top iron in front The method uses the jack to push the swivel bridge in sections from the construction position of the swivel bridge to the translational position of the swivel bridge.

Further, a scale mark is set on the swivel structure, and a scale is set on the side of the translation slideway of the slideway system corresponding to the translational position of the swivel bridge, and the pushing system is controlled to push the swivel bridge to the translational position of the swivel bridge Translation, when the scale mark on the swivel structure reaches the scale set on the scale through the instrument, it means that the swivel bridge is in place at the set translational position of the swivel bridge.

Further, the first consolidation structure is a temporary consolidation structure, using a concrete structure or a steel structure; the second consolidation structure is a post-cast concrete structure.

Further, during the construction of the swivel bridge, the lower end of the lower bearing platform of the swivel structure of the swivel bridge is fixed with a pulley block or a slider, and the pulley block or slider at the lower end of the swivel structure is slidably matched with the translation slideway of the slideway system.

Further, in the process of translating the swivel bridge from the construction position of the swivel bridge to the translational position of the swivel bridge through the jacking system, the translation is carried out by the cooperation of the pulley block and the guide rail, or the direction is controlled by the pulley and the guide rail, and the slider and the guide rail are used for translation. Slideway mates for translation, or simple slider and slideway mates for translation. The slideway can use conventional PTFE slide + butter, or steel plate + PTFE powder + butter or other methods.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, a jacking system is set under the swivel structure of the flyover bridge. After the bridge swivel is completed, the swivel bridge can be translated into place through the jacking system, and the swivel bridge can be constructed at a non-linear position. After the construction is successful, the bridge will be moved to the line position, which can avoid turning around the existing bridge. Due to the influence of the turning site, the line plane cannot be parallel to the existing line and needs to be wound around to form an unusable triangular plot. The lengthening of the line, the increase of the longitudinal slope, and the reduction of the driving index and comfort can reduce the project land, save investment, and improve the horizontal and vertical design of the line.

2. In the present invention, a jacking system is set under the swivel structure of the flyover bridge. After the bridge swivel is completed, the swivel bridge can be translated into place through the jacking system, and the swivel bridge can be constructed at a non-linear position. After the completion of the construction, the bridge will be moved to the line position. It can also avoid swivel construction in urban areas with dense buildings and restricted roads, where there is no site, or the amount of demolition is large, or the swivel construction is extremely difficult, or the graphic design and If the bridge type is limited, the feasibility of the project can be improved, the demolition can be reduced, the horizontal and vertical design of the line and the design of the bridge can be improved, and investment can be saved.

Description of drawings

Fig. 1 is a schematic plan view of the swivel method of the present invention;

Fig. 2 is the structure schematic diagram when the swivel body of the push-type swivel translation system combined with swivel and translation of the present invention is in place;

Fig. 3 is the structure schematic diagram when preparing translation of the push-type swivel translation system combining the swivel and translation of the present invention;

Fig. 4 is a structural schematic diagram during the translation process of the push-type swivel translation system combining the swivel and translation of the present invention;

Fig. 5 is a structural schematic diagram of the push-type swivel translation system combined with swivel and translation of the present invention after translation is in place;

Fig. 6 is a schematic diagram of the permanently consolidated structure of the push-type swivel translation system combining swivel and translation according to the present invention.

Detailed ways

The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

Referring to Fig. 1 to Fig. 6, the embodiment of the present invention provides a push-type swivel translation system combining swivel and translation, including a swivel structure 3, a slideway system and a system for pushing the swivel structure along the slideway Translational jacking system, the slideway system is arranged along the swivel bridge construction position 1 to the swivel bridge translation position 2, the slideway system includes a slideway foundation 9 and a slideway set on the slideway foundation The translation slideway 8, the swivel structure 3 is supported on the pulley block 5, and is slidingly matched with the translation slideway 8 through the pulley block 5, and the upper end of the swivel structure 3 is provided with piers and bridges. The bridge cap foundation 91 is set at the position 2 where the swivel bridge is moved in place, and when the swivel structure is translated in place, the swivel structure and the bridge cap foundation 91 are fixed to form the final swivel bridge.

The swivel structure of the present invention can adopt a traditional swivel structure, but is not limited to the traditional swivel structure. The swivel structure 3 of this embodiment includes an upper turntable, a lower turntable, a ball joint and a swivel traction system. The upper end of the upper turntable is provided with piers and bridges, and the lower end of the lower turntable described in this embodiment is fixed with a pulley block 5 or a slider, and the pulley block 5 or slider at the lower end of the swivel structure slides with the translation slideway 8 of the slideway system Cooperate. The slider can adopt steel plate structure or concrete + steel plate structure. The swivel traction system of the swivel structure still adopts the way that the steel strand is wound on the turntable of the spherical hinge, and the steel strand is stretched by continuous jacks to drive the spherical hinge to rotate. In this embodiment, multiple rows of parallel pulley blocks are pre-installed under the base of the lower turntable of the swivel structure according to the weight of the flyover swivel structure, and the pulley blocks slide and cooperate with the translation slideway below to form a sliding system. The system can be combined with the electric drive system, which can have its own power and slide actively; it can also slide passively without a power system. The reinforced concrete slideway foundation is set under the sliding slideway, and the thickness of the foundation is determined by structural calculation. The translation slideway 8 of the present example adopts the guide rail matched with the pulley block 5 . A part of the slideway foundation 9 of the present invention utilizes the bridge cap foundation 91 of the translational position of the swivel bridge, and the remaining parts adopt concrete caps and pile foundations. Translation slideway 8 can be straight line also can be curved.

The present invention can realize precise positioning of the swivel structure through manual manual control. Of course, the present invention can also realize precise positioning of the swivel structure by setting an automatic control positioning device according to actual needs.

Further, the jacking system includes a jack 6 and a back, and a back slot 73 is reserved in sections on both sides of the slideway system for prefabricating or casting a temporary back 72 section by section, and the jack is used for sectioning Push the swivel structure from the construction position of the swivel bridge to the translational position of the swivel bridge. Alternatively, the jacking system includes a jack and a back, and by setting a pad between the back of the jack and the back or/and setting a top iron in front of the jack, the jack can lift the swivel structure from the construction position of the swivel bridge in sections. Push until the swivel bridge is in place. Pads can be concrete blocks. A back wall 71 can also be set at both ends or one end of the slideway system.

Further, scale marks are provided on the lower bearing platform, a scale is provided on the side of the translation slideway corresponding to the translation position of the swivel bridge, and the pushing system is used to push the swivel structure to translate to the swivel bridge. Position translation, when the scale mark on the lower bearing platform reaches the scale set on the scale through the instrument, it means that the swivel structure is in place at the set swivel bridge translation position.

Further, one end of the slideway system is provided with a detachable first consolidation structure 4, namely a temporary consolidation structure, for temporarily consolidating the lower end of the swivel structure at the construction position of the swivel bridge with the slideway system; The first consolidation structure can be a concrete structure or a steel structure.

Further, the other end of the slideway system is provided with a second consolidation structure 10, which is used to move the lower end of the swivel structure at the translation position of the swivel bridge to the bridge cap foundation 91 at the position of the swivel bridge translation Permanent consolidation; the second consolidation structure is a post-cast concrete structure.

Embodiment two

Referring to Fig. 1 to Fig. 6, an embodiment of the present invention provides a bridge construction method combining swivel and translation, including the following steps:

Determine the construction position of the swivel bridge and the translation position of the swivel bridge according to the centerline position of the flyover bridge, the span of the swivel body and the site conditions;

As the present embodiment has the highway or railway 11 and the existing flyover or non-demolition structure 12 that are crossed by the position of the flyover as shown in Figure 1, it is necessary to use the existing flyover or A newly built overpass next to the non-demolishable structure 12, 13 is the center line of the new overpass, 14 is the centerline of the swivel bridge after construction to the design position, and the centerline and swivel span of the newly built overpass according to the needs and Site conditions and other conditions determine the construction position 1 of the swivel bridge and the position 2 of the translational translation of the swivel bridge.

Construction slideway system 15 along the construction position 1 of the swivel bridge to the in-place position 2 of the swivel bridge;

Prefabricate the swivel bridge at the swivel construction position, and fix the lower end of the swivel structure of the swivel bridge to the slideway system through the detachable first consolidation structure during construction of the swivel bridge;

After the construction of the swivel bridge is completed, turn the swivel bridge to the design position;

consolidated swivel structure;

dismantling the first consolidation structure;

Install a jacking system;

Translate the swivel bridge from the construction position of the swivel bridge to the translational position of the swivel bridge through the jacking system;

Remove the jacking system;

After pouring the bridge piers, the bridge cap foundation 91 is permanently consolidated through the second consolidation structure to move the lower end of the swivel structure and the swivel bridge into position, forming a bridge;

Carry out follow-up construction and complete bridge operation.

The slideway system can be straight or curved. By adjusting the pushing system, the swivel structure can advance along a straight line or a curve as required.

Below the swivel structure of the flyover bridge, a jacking system is set up, and after the bridge swivel is completed, the swivel bridge is pushed into place through the jacking system. The two power systems of the present invention act successively to form a construction method combining rotation and translation.

The jacking system described in this embodiment includes a jack and a back. By reserving the back slots on both sides of the slideway according to the needs, the back slots are prefabricated or cast-in-place temporary backs section by section, or a pad is set behind the jack and a jack is set in front. In the iron method, jacks are used to push the swivel bridge in sections from the construction position of the swivel bridge to the translational position of the swivel bridge. Steel structures or prefabricated concrete elements are used.

In this embodiment, a scale mark is set on the swivel structure, and a scale is set on the side of the translation slideway of the slideway system corresponding to the translation position of the swivel bridge, and the pushing system is controlled to push the swivel bridge to the translational position of the swivel bridge. Translation, when the scale mark on the swivel structure reaches the scale set on the scale through the instrument, it means that the swivel bridge is in place at the set translational position of the swivel bridge.

The first consolidation structure described in this embodiment is a temporary consolidation structure, which adopts a concrete structure or a steel structure; the second consolidation structure is a post-cast concrete structure.

During the construction of the swivel bridge in this embodiment, the lower end of the lower bearing platform of the swivel structure of the swivel bridge is fixed with a pulley block or a slider, and the pulley block or slider at the lower end of the swivel structure is slidably matched with the translation slideway of the slideway system.

In this embodiment, during the process of translating the swivel bridge from the construction position of the swivel bridge to the in-place position of the swivel bridge through the jacking system, the translation is carried out by the cooperation of the pulley block and the guide rail, or the direction is controlled by the pulley and the guide rail. Slideway mates for translation, or simple slider and slideway mates for translation. The slideway can use conventional PTFE slide plate + butter, or steel plate + PTFE powder + butter or other methods.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (13)

1. a push-type swivel translation system combining swivel and translation, characterized in that: comprise a swivel structure, a slide system and a push system for promoting the translation of the swivel structure along the slide system, said The slideway system is arranged along the construction position of the swivel bridge to the translational position of the swivel bridge. The swivel structure is supported on the slideway system and is slidably matched with the slideway system. Piers and bridges are arranged at the upper end of the swivel structure. . 2. The system according to claim 1, characterized in that: the slideway system includes a translational slideway arranged along the construction position of the swivel bridge to the translation position of the swivel bridge, and a slideway foundation is arranged under the translational slideway ; The swivel structure is supported on the translation slideway, and is slidingly matched with the translation slideway. 3. The system according to claim 1 or 2, characterized in that: the lower end of the swivel structure is fixed with a pulley block or a slider, and the pulley block or slider is slidingly matched with the translation slideway of the slideway system. 4. The system according to claim 1, characterized in that: the jacking system includes a jack and a back, and back slots are reserved in sections on both sides of the slideway system for prefabricated or cast-in-place backs section by section , the jack is used for segmentally pushing the swivel structure from the construction position of the swivel bridge to the translational position of the swivel bridge. 5. The system according to claim 1, characterized in that: the jacking system comprises a jack and a back, by setting a pad between the back of the jack and the back or/and setting a top iron in front of the jack, so that the jack Push the swivel structure in sections from the construction position of the swivel bridge to the translational position of the swivel bridge. 6. The system according to claim 1, characterized in that: the lower bearing platform is provided with a scale mark, and the side of the translation slideway corresponding to the position where the swivel bridge is translated in place is provided with a scale, which is used for the pushing system. To push the swivel structure to move toward the position of the swivel bridge, when the scale mark on the lower bearing platform reaches the scale set on the scale through the instrument observation, it means that the swivel structure is in place at the set swivel bridge The location is in place. 7. The system according to claim 1, characterized in that: one end of the slideway system is provided with a detachable first consolidating structure, namely a temporary consolidating structure, which is used to place the revolving body at the construction position of the revolving bridge The lower end of the structure is temporarily fixed with the slideway system; the first consolidation structure is a concrete structure or steel structure; the other end of the slideway system is provided with a second consolidation structure, which is used to translate the swivel bridge into position The lower end of the swivel structure is fixed to the bridge cap foundation at the position where the swivel bridge is translated; the second consolidation structure is a post-cast concrete structure. 8. A bridge construction method combining swivel and translation, characterized in that, comprising the steps of: Determine the construction position of the swivel bridge and the translation position of the swivel bridge; Construction slideway system along the construction position of the swivel bridge to the translational position of the swivel bridge; Prefabricate the swivel bridge at the construction position of the swivel bridge. During the construction of the swivel bridge, fix the lower end of the swivel structure of the swivel bridge to the slideway system through the detachable first consolidation structure; After the construction of the swivel bridge is completed, turn the swivel bridge to the design position; consolidated swivel structure; dismantling the first consolidation structure; Translate the swivel bridge from the construction position of the swivel bridge to the translational position of the swivel bridge through the jacking system; Fix the lower end of the swivel structure and the bridge cap foundation of the swivel bridge in place through the second consolidation structure; Carry out follow-up construction and complete bridge operation. 9. The method according to claim 8, characterized in that: the jacking system includes a jack and a back, and by reserving back slots on both sides of the slideway according to needs, the back is prefabricated or cast-in-place segment by segment, Or the method of setting pads at the rear of the jack and setting the top iron at the front, push the swivel bridge from the construction position of the swivel bridge to the translational position of the swivel bridge with the jack in sections. 10. The method according to claim 8, characterized in that: a scale mark is set on the swivel structure, a scale is set on the side of the translation slideway of the slideway system corresponding to the translation position of the swivel bridge, and the pushing system is controlled Push the swivel bridge to move toward the in-place position of the swivel bridge. When the scale marks on the swivel structure reach the scale set on the scale through the instrument, it means that the swivel bridge is in the set swivel bridge. in place. 11. The method according to claim 8, characterized in that: the first consolidation structure is a temporary consolidation structure, using a concrete structure or a steel structure; the second consolidation structure is a post-cast concrete structure. 12. The method according to claim 8, characterized in that: during the construction of the swivel bridge, the lower end of the lower platform of the swivel structure of the swivel bridge is fixed with a pulley block or a slider, and the pulley block or slider at the lower end of the swivel structure Slidingly cooperate with the translation slideway of the slideway system. 13. The method according to claim 8 or 12, characterized in that: in the process of translating the swivel bridge from the construction position of the swivel bridge to the translational position of the swivel bridge through the pushing system, the combination of pulley blocks and guide rails is used to Translate, or use the pulley and the guide rail to control the direction, the slider and the slideway to cooperate to perform translation, or simply use the slider and the slideway to cooperate to perform translation.